
(d)
Cauchy
-
Schwartz
ineg
.
/
of
.
I
/
E
/
Ñ
/
II
/
Ie
.
Kai
:
an
)
•
lbii.by/EaiF-aibi--bnT
"
tettheplanebeA-x -By-cz-p .no/AH+''-+a*#b-+-
a
:*
,÷
.
+
big
for
some
numbers
A
,
B
,
C
and
D
.
let
P
=
ix.
Y
.
7)
be
apo-mtontheplme-sofn-x-By-cz-J-illtpo-lxo.7.to
)
be
a
point
outside
the
plane
.
-
dist
'
(
Po
.
P
)
=
Ix
-
Xo
)
7-
4-
%)
7-
¢-25
(
A'
+
B'
+
e)
(
ex
-
✗
→
7-
e-
%
>
'
+
(2--2-5)
A
1×-161+13174>+42--2*1
'
=/
A
Xo
-113%-1
(
Zo
+
D
/
2
¥
☒
-
x.it#Ysi-st-a5=/AxaI??;?Y-Dl---diitcB.p1ane
,
☐
'